/**
 * Copyright 2009-2018 the original author or authors.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.ibatis.domain.jpetstore;

import java.io.Serializable;
import java.math.BigDecimal;

public class CartItem implements Serializable {

	private static final long serialVersionUID = 1L;

	private Item item;
	private int quantity;
	private boolean inStock;
	private BigDecimal total;

	public boolean isInStock() {
		return inStock;
	}

	public void setInStock(boolean inStock) {
		this.inStock = inStock;
	}

	public BigDecimal getTotal() {
		return total;
	}

	public Item getItem() {
		return item;
	}

	public void setItem(Item item) {
		this.item = item;
		calculateTotal();
	}

	public int getQuantity() {
		return quantity;
	}

	public void setQuantity(int quantity) {
		this.quantity = quantity;
		calculateTotal();
	}

	public void incrementQuantity() {
		quantity++;
		calculateTotal();
	}

	private void calculateTotal() {
		if (item != null && item.getListPrice() != null) {
			total = item.getListPrice().multiply(new BigDecimal(quantity));
		} else {
			total = null;
		}
	}

}
